In my report below is the sample data
id stage createdon revenue
1 U 1/1/2013 1000
2 Ir 1/2/2013 2000
3 Ir 2/2/2013 1000
4 A 2/3/2013 5000
5 A 3/3/2013 1000
6 Ir 3/3/2013 5000
7 Ir 4/3/2013 7000
and in stacked column Chart
1. Series Aggregate is on Runningvalue of Revenue set to stage scope.
2. CAtegory group is on Month of Created date
3. Series group is on Stage
4. Have a report filter for Year.
Sub report parameter: Month which is passed when I click on the stacked column.
Below is the image of actual report
As the column contains running value and if for that particular month if the series does not have any data, then the click on that particular region is failing to pass the month name. for eg.,In the above screenshot When i click on Region A or Region C for Aug Column, the Month Parameter for subreport is always null. When I click on Region B , parameter is having the value as "Aug".
Let me know is there anything I am missing.